package com.heima.app.gateway.filter;


import com.heima.app.gateway.util.AppJwtUtil;
import io.jsonwebtoken.Claims;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
@Slf4j
public class AuthorizeFilter implements Ordered , GlobalFilter {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();


        if (request.getURI().getPath().contains("/login")){
            return chain.filter(exchange);
        }

        String token = request.getHeaders().getFirst("token");
        if (StringUtils.isBlank(token)){
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }

        try {
            Claims claimsBody = AppJwtUtil.getClaimsBody(token);

            int i = AppJwtUtil.verifyToken(claimsBody);

            if (i==1||i==2){
                response.setStatusCode(HttpStatus.UNAUTHORIZED);
                return response.setComplete();
            }
        }catch (Exception e){
            e.printStackTrace();
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }


        return chain.filter(exchange);
//
//        ServerHttpRequest request = exchange.getRequest();
//        ServerHttpResponse response = exchange.getResponse();
//
//        if (request.getURI().getPath().contains("/login")){
//            return chain.filter(exchange);
//        }
//
//        String token = request.getHeaders().getFirst("token");
//        if (StringUtils.isBlank(token)){
//            response.setStatusCode(HttpStatus.UNAUTHORIZED);
//            return response.setComplete();
//        }
//
//        try {
//            Claims claimsBody = AppJwtUtil.getClaimsBody(token);
//            int i = AppJwtUtil.verifyToken(claimsBody);
//
//            if(i==1||i==2){
//
//            }
//        }catch (Exception e){
//            e.printStackTrace();
//            response.setStatusCode(HttpStatus.UNAUTHORIZED);
//            return response.setComplete();
//
//        }
//
//
//
//        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
